diff options
Diffstat (limited to 'sys/netinet/tcp_input.c')
| -rw-r--r-- | sys/netinet/tcp_input.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c index 102430d..7134ce4 100644 --- a/sys/netinet/tcp_input.c +++ b/sys/netinet/tcp_input.c @@ -235,16 +235,39 @@ VNET_DEFINE(struct inpcbhead, tcb); VNET_DEFINE(struct inpcbinfo, tcbinfo); /* - * TCP statistics are stored in an "array" of counter(9)s. + * TCP statistics are stored in an array of counter(9)s, which size matches + * size of struct tcpstat. TCP running connection count is a regular array. */ VNET_PCPUSTAT_DEFINE(struct tcpstat, tcpstat); -VNET_PCPUSTAT_SYSINIT(tcpstat); SYSCTL_VNET_PCPUSTAT(_net_inet_tcp, TCPCTL_STATS, stats, struct tcpstat, tcpstat, "TCP statistics (struct tcpstat, netinet/tcp_var.h)"); +VNET_DEFINE(counter_u64_t, tcps_states[TCP_NSTATES]); +SYSCTL_COUNTER_U64_ARRAY(_net_inet_tcp, TCPCTL_STATES, states, CTLFLAG_RD | + CTLFLAG_VNET, &VNET_NAME(tcps_states)[0], TCP_NSTATES, + "TCP connection counts by TCP state"); + +static void +tcp_vnet_init(const void *unused) +{ + + COUNTER_ARRAY_ALLOC(VNET(tcps_states), TCP_NSTATES, M_WAITOK); + VNET_PCPUSTAT_ALLOC(tcpstat, M_WAITOK); +} +VNET_SYSINIT(tcp_vnet_init, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY, + tcp_vnet_init, NULL); #ifdef VIMAGE -VNET_PCPUSTAT_SYSUNINIT(tcpstat); +static void +tcp_vnet_uninit(const void *unused) +{ + + COUNTER_ARRAY_FREE(VNET(tcps_states), TCP_NSTATES); + VNET_PCPUSTAT_FREE(tcpstat); +} +VNET_SYSUNINIT(tcp_vnet_uninit, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY, + tcp_vnet_uninit, NULL); #endif /* VIMAGE */ + /* * Kernel module interface for updating tcpstat. The argument is an index * into tcpstat treated as an array. |
